# Convergence articles

Displaying 551 - 560 of 659

Make a crown of gold copper, tin, and iron weighing 60 minae: gold and copper shall be 2/3 of it; gold and tin, 3/4 of it; and gold and iron, 3/5 of it. Find the required weights of gold, copper, tin, and iron.
A discussion of aspects of Leonardo of Pisa's Book of Squares.
A lady has two silver cups, and only one cover for both. The first cup weighs 16 oz, and when it is covered it weighs 3 times as much as the second cup; but when the second cup is covered, it weighs 4 times as much as the first.
An English translation of Eratosthenes' Geography, which includes "On the Measurement of the Earth."
A collection of articles on using the history of mathematics of the past 200 years in the undergraduate classroom.
The history of apportionment of representatives in the U.S. Congress, from the 1790s until today, along with a discussion of the mathematics involved in the various methods.
Two circles, the sum of whose radii is a, are placed in the same plane with their centers at a distance 2a...
The work of ten scientists who thought deeply about patterns.
Assume that the human population after the flood was 6 and that 200 years later the population was 1,000,000. Find the annual growth of the population.
A portrait gallery of mathematicians, mostly taken from the collection at the Dibner Library of the Smithsonian, with permission.